001: /*
002: * This file is part of the WfMOpen project.
003: * Copyright (C) 2001-2004 Danet GmbH (www.danet.de), GS-AN.
004: * All rights reserved.
005: *
006: * This program is free software; you can redistribute it and/or modify
007: * it under the terms of the GNU General Public License as published by
008: * the Free Software Foundation; either version 2 of the License, or
009: * (at your option) any later version.
010: *
011: * This program is distributed in the hope that it will be useful,
012: * but WITHOUT ANY WARRANTY; without even the implied warranty of
013: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
014: * GNU General Public License for more details.
015: *
016: * You should have received a copy of the GNU General Public License
017: * along with this program; if not, write to the Free Software
018: * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
019: *
020: * The initial version of this code has been contributed by Init AG
021: * (http://www.init-ka.de).
022: *
023: * $Id: GetAttributeValues.java,v 1.2 2006/09/29 12:32:07 drmlipp Exp $
024: *
025: * $Log: GetAttributeValues.java,v $
026: * Revision 1.2 2006/09/29 12:32:07 drmlipp
027: * Consistently using WfMOpen as projct name now.
028: *
029: * Revision 1.1 2004/09/15 20:10:12 mlipp
030: * Started adding Scarab interface.
031: *
032: */
033: package de.danet.an.workflow.tools.scarab;
034:
035: import java.io.Serializable;
036:
037: import java.util.Map;
038: import java.util.Vector;
039:
040: import java.rmi.RemoteException;
041:
042: import de.danet.an.workflow.omgcore.ProcessData;
043:
044: import de.danet.an.workflow.api.Activity;
045: import de.danet.an.workflow.api.DefaultProcessData;
046: import de.danet.an.workflow.api.FormalParameter;
047:
048: import de.danet.an.workflow.spis.aii.ApplicationNotStoppedException;
049: import de.danet.an.workflow.spis.aii.CannotExecuteException;
050: import de.danet.an.workflow.spis.aii.ResultProvider;
051: import de.danet.an.workflow.spis.aii.ToolAgent;
052:
053: /**
054: * This class provides a tool that gets attribute value, if value was
055: * set otherwise "-".
056: *
057: * @author lgrischancew@init-ka.de
058: * @author <a href="mailto:lipp@danet.de"></a>
059: * @created on 22.03.2004
060: * @version $Revision: 1.2 $
061: */
062: public class GetAttributeValues implements ToolAgent, ResultProvider,
063: Serializable {
064:
065: private static final org.apache.commons.logging.Log logger = org.apache.commons.logging.LogFactory
066: .getLog(GetAttributeValues.class);
067:
068: private String serverUrl = "http://localhost:12345";
069:
070: /** The result container. */
071: private ThreadLocal result = new ThreadLocal();
072:
073: /**
074: * Set the server URL. Defaults to
075: * <code>http://localhost:12345</code>.
076: *
077: * @param serverUrl the server URL
078: */
079: public void setServerUrl(String serverUrl) {
080: this .serverUrl = serverUrl;
081: }
082:
083: public void invoke(Activity activity, FormalParameter[] formPars,
084: Map map) throws CannotExecuteException, RemoteException {
085:
086: try {
087: String issueId = (String) map.get(formPars[0].id());
088: String attribute = (String) map.get(formPars[1].id());
089: String resId = null;
090: for (int i = 0; i < formPars.length; i++) {
091: if (formPars[i].mode() != FormalParameter.Mode.IN) {
092: resId = formPars[i].id();
093: continue;
094: }
095: }
096:
097: ProcessData data = new DefaultProcessData();
098: Vector w = (Vector) (XmlRpcCall.rpc(serverUrl,
099: "scm.getAttributeValues", new Object[] { issueId,
100: attribute }));
101: if (w.size() > 0) {
102: for (int i = 0; i < w.size(); i++) {
103: data.put(resId, w.elementAt(i));
104: }
105: } else {
106: data.put(resId, "-");
107: }
108: result.set(data);
109: } finally {
110: if (logger.isDebugEnabled()) {
111: logger.debug("Finished invocation of "
112: + activity.uniqueKey());
113: }
114: }
115: }
116:
117: /**
118: * Return the result evaluated during {@link ToolAgent#invoke
119: * <code>invoke</code>}. The method will only be called once after
120: * each invoke, i.e. the attribute holding the result be be
121: * cleared in this method.
122: *
123: * @return the result data or <code>null</code> if the invocation
124: * does not return any data.
125: */
126: public Object result() {
127: Map res = (Map) result.get();
128: result.set(null);
129: return res;
130: }
131:
132: public void terminate(Activity activity)
133: throws ApplicationNotStoppedException {
134: throw new ApplicationNotStoppedException(
135: "Terminate not implemented");
136: }
137: }
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